20-18507755-C-G

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The ENST00000336714.8(SEC23B):​c.-250C>G variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.83 in 152,388 control chromosomes in the GnomAD database, including 53,630 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.83 ( 53599 hom., cov: 35)
Exomes 𝑓: 0.91 ( 31 hom. )

Consequence

SEC23B
ENST00000336714.8 5_prime_UTR

Scores

2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: -0.0340
Variant links:
Genes affected
SEC23B (HGNC:10702): (SEC23 homolog B, COPII coat complex component) The protein encoded by this gene is a member of the SEC23 subfamily of the SEC23/SEC24 family, which is involved in vesicle trafficking. The encoded protein has similarity to yeast Sec23p component of COPII. COPII is the coat protein complex responsible for vesicle budding from the ER. The function of this gene product has been implicated in cargo selection and concentration. Multiple alternatively spliced transcript variants have been identified in this gene. [provided by RefSeq, Feb 2010]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.97).
BP6
Variant 20-18507755-C-G is Benign according to our data. Variant chr20-18507755-C-G is described in ClinVar as [Benign]. Clinvar id is 337781.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (NFE) allele frequency at 95% confidence interval = 0.921 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
SEC23BNM_032986.5 linkuse as main transcriptc.-15+86C>G intron_variant

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
SEC23BENST00000336714.8 linkuse as main transcriptc.-250C>G 5_prime_UTR_variant 1/201 P1
SEC23BENST00000262544.6 linkuse as main transcriptc.-290C>G 5_prime_UTR_variant 1/205 P1
SEC23BENST00000450074.6 linkuse as main transcriptc.-15+86C>G intron_variant 5
SEC23BENST00000646240.1 linkuse as main transcriptc.-222+86C>G intron_variant

Frequencies

GnomAD3 genomes
AF:
0.830
AC:
126365
AN:
152194
Hom.:
53583
Cov.:
35
show subpopulations
Gnomad AFR
AF:
0.656
Gnomad AMI
AF:
0.979
Gnomad AMR
AF:
0.826
Gnomad ASJ
AF:
0.880
Gnomad EAS
AF:
0.728
Gnomad SAS
AF:
0.852
Gnomad FIN
AF:
0.901
Gnomad MID
AF:
0.873
Gnomad NFE
AF:
0.927
Gnomad OTH
AF:
0.847
GnomAD4 exome
AF:
0.908
AC:
69
AN:
76
Hom.:
31
Cov.:
0
AF XY:
0.929
AC XY:
52
AN XY:
56
show subpopulations
Gnomad4 AMR exome
AF:
1.00
Gnomad4 SAS exome
AF:
0.750
Gnomad4 FIN exome
AF:
0.750
Gnomad4 NFE exome
AF:
0.929
Gnomad4 OTH exome
AF:
1.00
GnomAD4 genome
AF:
0.830
AC:
126431
AN:
152312
Hom.:
53599
Cov.:
35
AF XY:
0.829
AC XY:
61713
AN XY:
74482
show subpopulations
Gnomad4 AFR
AF:
0.657
Gnomad4 AMR
AF:
0.826
Gnomad4 ASJ
AF:
0.880
Gnomad4 EAS
AF:
0.728
Gnomad4 SAS
AF:
0.853
Gnomad4 FIN
AF:
0.901
Gnomad4 NFE
AF:
0.927
Gnomad4 OTH
AF:
0.842
Alfa
AF:
0.866
Hom.:
2969
Bravo
AF:
0.813
Asia WGS
AF:
0.747
AC:
2597
AN:
3478

ClinVar

Significance: Benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Benign, criteria provided, single submitterclinical testingGeneDxJul 27, 2018- -
Congenital dyserythropoietic anemia Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJun 14, 2016- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.97
CADD
Benign
3.3
DANN
Benign
0.48

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs4813333; hg19: chr20-18488399; API